12 Struc tur al Pla t e W ith a wide v ariet y of shapes , including B o x C ulv er ts , D ur • A • S pan ™ is suitable f or man y dif er en t applic a tions . c orr osion/abr asion-r esistan t solid aluminum allo y struc tur al pla t e ideal f or salt w a t er and aggr essiv e soil en vir onmen ts . Str eam c r ossings c ulv er ts F ish P assages r oad S alt and O ther St or age Struc tur es S alt w a t er and A ggr essiv e Applic a tions c ulv er t r elines Light w eight, str o ng and corr osio n /abr asio n r esistant, D ur • A • S pan ™ g oes the distance in o v er 1 0, 000 str uctur es w or ldwide – beating the usual heavyw eight co ntenders, like pr ec ast co ncr ete , o n o v er al l per f or mance and cost. A nd no w , thanks to our inno vativ e r einf or cing r ib tec hnolog y , D ur • A • S pan ™ c an g o e v en fur ther (and wider) to out per f or m al l c hal leng ers. Reco mmended f or sites with corr osiv e soil and / or water Light w eight P er f or mance pr o v en in o v er 10,000 instal latio ns w or ldwide S pans c an ex ceed 12.2 m (40') Corr ugatio n pr ofle of 229 mm (9") pitc h 64 mm (2.5") depth A vailable in: Bo x Cul v er ts; S tandar d, or High P r ofle Ar c hes; Rounds; V er tic al El lipses; P ipe Ar c hes, and; P ear S haped Botto mless designs ar e en vir o nmental l y-f r iend l y Can r eline older str uctur es 229 mm (9") 64 mm (2.5") r E c OMMEN d E d FO r r ound v er tic al E llipse P ear S haped (P edestrian/Animal) P ipe Ar ch P ear S haped ( v ehic ular) B o x c ulv er t Standar d Ar ch h igh P r ofle Ar ch